my ipad onscreen keyboard is not vissable and voiceover keeps saying quick nav on and quick nav off

Hi all,
I am having the issue where when using my ipad with voiceover in an edit field the onscreen keyboard does not appear. I have turned off Bluetooth, restarted and reset the device, updated the software and have not been able to fix it. Voice over states quick nav on and quick nav off but with no solution. I have not ever connected an external keyboard to this ipad before so do not know what the reason for this is. Can anyone provide a solution?

Thanks!